Hoist driving gear



April 7 1926 1,582,075

' R. F. PAGE HO-IST DRIVING GEAR Filed Sept. 16 1925 Ewe/#021 PofierZFPa e qzcmssp,

Patented Apr. 27, 1926.

UNITED STATES .PATENT'- ROBERT F. PAGE, DECEASED, LATE 0F ATHENS, PENNSYLVANIA; BY JOHN M. FELT, ADMINISTRATOR, 0F ATHENS, EENITSYLVANIA, ASSIGNOR TO INGERSOLL-RAND COMPANY, OF JERSEY CITY, NE'W JERSEY, A CORPQRATION OF NEVE JERSEY.

HOIST DRIVING GEAR.

Application filed September To all whom it may concern:

Be it known that Rosana F. Pnon, deceased, late a citizen of the United States, and a resident of Athens, in the county of Bradford, State of Pennsylvania, did invent a certain Hoist Driving Gear, of which the following is a specification accompanied by drawings. 1 p

This invention relates to hoists, but more particularly to hoist driving gearing, by means of which a winding drum may be driven from a. suitable motor,

The objects of the invention are to enable the gyratory movement of a driving gear to be simply and efficiently applied to the rotation of a winding drum about the aicis of a motor shaft and produce a comp'achunitary driving gear assembled in one casing which occupies a small amount of space at one end of the drum.

The invention is shown in one of its preferred forms in the accompanying drawing, which is a longitudinal sectional elevation of a hoist partlybroken away.

Referring to the drawing, the base A is provided with the end frames 13 and C in order to illustrate a suitable frame for the hoist, and the motor indicated at D may be of any suitable type, as for instance a fluid actuated motor controlled by the throttle handle E. The motor, as shown, may be supported from the end frame B, and the motor shaft F extending from the motor is conveniently ournaled at its outer end G in anti-friction bearings I-I'in the cover J of the casing K. This casing K, forming a gear case, may be conveniently constructed as part of the end frame C. A removable cap L is placed overthe bearing H.

The hollow drum shaft 0 surrounds the motor shaft F journaled at its outer end in the anti-friction bearing P in the casing K. An anti-friction bearing Q, may also be provided for the motor shaft F inside the driven gear R shown as a part of the drum shaft 0. A winding drum S is suitably keyed to the drum shaft 0.

The motor shaft 1* within the casing K carries a hub T suitably keyed thereto, and,

as shown, the axis of the hub T is at an angle 16, 1925. Seria1'No. 56,726.

to the axis of the motor shaft F. A gyratory driving gear U is rotatably mounted upon the hub T bymeans of the threaded sleeve V, and thrust bearings TV are providcd for the gear U. A stationary crown gear X is suitably secured within the easing K as by means of thescrcws a, and the gyratory gear U, as shown, is provided with concentric sets of teeth 0 and (Z, the outer set a meshing with theteeth 0 of the crown gear, and the inner set of teeth (Z meshing with the teeth 7 of the driven gear In the operation of the device rotation of the driving shaft F causes gyratory move ment of the driving gear U, which impart-s rotation to the driven gear R and rotates the drum shaft 0 and the dr'um S in either direction, as desired, since the motor 1) I may be of the reversible type.

The driving gear is strong and compact, and may be readily assembled within the casing K. The entire hoist is unitary in construction and readily taken apart when desired.

Claim:

In a hoist, the combination of a base, a pair of end frames supported by the base, a fluid actuated motor on one of said frames,.

a casing on the other end frame and integral therewith, a removable cover for said casing, a motor shaft extending; from said motor and journalled in the cover, a hollow drum shaftsurrounding the motor shaft journalled at its outer end in saidcasing and terminating in a driven gear, a winding drum keyed to said drum shaft, a hub keyed to and at an angle to the axis of said motor shaft, a gyratory driving gear rotatably mounted upon said hub, a stationary crown gear secured within the casing, and concentricsets of teeth provided on said gyratory gear, the outer set of said teeth meshing with said crown gear, and the inner set of teeth meshing with said driven gear.

In testimony whereof, I have signed. this specification, as administrator.

, JOHN MQ FELT, Sole administrator oftlzeestate 1306 1 61 Page, deceased. I 

